Disk drive transport, clamping and testing

ABSTRACT

A disk drive transporter, for transporting a disk drive and for mounting a disk drive within a test slot, includes a frame configured to receive and support a disk drive. The frame includes sidewalls configured to receive a disk drive therebetween and sized to be inserted into a test slot along with a disk drive. The frame also includes a clamping mechanism operatively associated with at least one of the sidewalls. The clamping mechanism includes a first engagement element and a first actuator operable to initiate movements of the first engagement element. The first actuator is operable to move the first engagement element into engagement with a test slot after a disk drive being supported by the frame is arranged in a test position in a test slot.

CROSS REFERENCE TO RELATED APPLICATIONS

This application is a continuation and claims the benefit of priorityunder 35 U.S.C. §120 of U.S. application Ser. No. 11/959,133, filed Dec.18, 2007. The disclosure of the prior application is considered part of,and is incorporated by reference in, the disclosure of this application.

TECHNICAL FIELD

This disclosure relates to the transport, clamping and testing of diskdrives.

BACKGROUND

Disk drive manufacturers typically test manufactured disk drives forcompliance with a collection of requirements. Test equipment andtechniques exist for testing large numbers of disk drives serially or inparallel. Manufacturers tend to test large numbers of disk drivessimultaneously or in batches. Disk drive testing systems typicallyinclude one or more tester racks having multiple test slots that receivedisk drives for testing. In some cases, the disk drives are placed incarriers which are used for loading and unloading the disk drives to andfrom the test racks.

The testing environment immediately around the disk drive is closelyregulated. Minimum temperature fluctuations in the testing environmentare critical for accurate test conditions and for safety of the diskdrives. The latest generations of disk drives, which have highercapacities, faster rotational speeds and smaller head clearance, aremore sensitive to vibration. Excess vibration can affect the reliabilityof test results and the integrity of electrical connections. Under testconditions, the drives themselves can propagate vibrations throughsupporting structures or fixtures to adjacent units. This vibration“cross-talking,” together with external sources of vibration,contributes to bump errors, head slap and non-repetitive run-out (NRRO),which may result in lower yields and increased manufacturing costs.Current disk drive testing systems employ automation and structuralsupport systems that contribute to excess vibrations in the systemand/or require large footprints.

In some cases, in order to combat undesirable vibrations, disk drivesare clamped to a carrier and/or to a tester rack in such a manner as toinhibit or dampen vibrations.

SUMMARY

In one aspect, a disk drive transporter, for transporting a disk driveand for mounting a disk drive within a test slot, includes a frameconfigured to receive and support a disk drive. The frame includes apair of sidewalls configured to receive a disk drive therebetween andsized to be inserted into a test slot along with a disk drive. The framealso includes a clamping mechanism operatively associated with at leastone of the sidewalls. The clamping mechanism includes a first engagementelement and a first actuator operable to initiate movements of the firstengagement element. The first actuator is operable to move the firstengagement element into engagement with a test slot after a disk drivebeing supported by the frame is arranged in a test position in a testslot.

Embodiments can include one or more of the following features. In someembodiments, the first actuator is operable to move the first engagementelement into engagement with a disk drive being supported by the frame.

In certain embodiments, the first engagement element includes first andsecond engagement members. In some cases, the first actuator is operableto initiate movements of the first and second engagement members.

In some embodiments, the first actuator is operable to move the firstengagement member into engagement with a test slot after a disk drivebeing supported by the frame is arranged in a test position in a testslot. In some cases, the first actuator is operable to move the secondengagement member into engagement with a disk drive being supported bythe frame.

In certain embodiments, the second engagement member includes adampener. The dampener may include a dampening material selected fromthermoplastics and/or rubberthermosets. The dampener may include anisolating or dampening material.

In some embodiments, the first actuator is operable to move the firstand second engagement members in substantially opposite directionsrelative to each other. In some cases, the first actuator is operable tomove the first and second engagement members substantiallysimultaneously.

In certain embodiments, the first engagement element includes aprotuberance configured to engage a mating feature in a test slot.

In some embodiments, the first engagement element includes a dampener.The dampener may include a dampening material selected fromthermoplastics and/or rubberthermosets.

In certain embodiments, the first engagement element includes a springclamp. The spring clamp includes a base portion and first and secondspring arms. The first and second spring arms each include a proximalend connected to the base portion and a displaceable distal end. In somecases, the actuator is operable to initiate movements of the distal endsof the first and second spring arms.

In some embodiments, the first actuator is pivotable relative to theframe to initiate movements of the first engagement element.

In certain embodiments, the first actuator includes an elongate bodyextending from a proximal end to a distal end along a first axis. Thefirst actuator is rotatable about the first axis to initiate movementsof the first engagement member.

In some embodiments, the first actuator is linearly displaceablerelative to the frame to initiate movements of the first engagementmember.

In certain embodiments, a first one of the sidewalls defines a firstactuator slot, and the first actuator is at least partially disposedwithin the first actuator slot. In some cases, the first actuator ismoveable within the first actuator slot to initiate movements of thefirst engagement member.

In some embodiments, the clamping mechanism includes a second engagementelement, and the first actuator is operable to initiate movements of thesecond engagement element. In some cases, the first actuator is operableto move the second engagement element into engagement with a test slotafter a disk drive being supported by the frame is arranged in a testposition in the test slot. In some cases, the first actuator is operableto move the second engagement element into engagement with a disk drivebeing supported by the frame.

In certain embodiments, the clamping mechanism includes a secondengagement element, and a second actuator operable to initiate movementsof the second engagement element. In some cases, the second actuator isoperable independently of the first actuator to initiate movements ofthe second engagement element. In certain cases, the second actuator isoperable to move the second engagement element into engagement with atest slot after a disk drive being supported by the frame is arranged ina test position in a test slot. In some cases, the second actuator isoperable to move the second engagement element into engagement with adisk drive being supported by the frame.

In some embodiments. the first actuator defines actuating features forinitiating movements of the first engagement element. In some cases, theactuating features include wedges and recesses.

In certain embodiments, the frame includes a base plate connected to thesidewalls. In some cases, the sidewalls and the base plate togetherdefine a substantially U-shaped opening for capturing a disk drive offof a support.

In another aspect, a disk drive test slot includes a housing thatdefines a test compartment for receiving and supporting a disk drivetransporter carrying a disk drive for testing. The housing also definesan open end that provides access to the test compartment for insertionand removal of disk drive transporter carrying a disk drive for testing.The test slot also includes a first engagement element mounted to thehousing. The first engagement element is configured to engage a diskdrive carried by a disk drive transporter when a disk drive transporteris inserted in the test compartment.

Embodiments can include one or more of the following features. In someembodiments, the first engagement element includes a clamping spring.

In certain embodiments, the first engagement element includes adampener. In some cases, the dampener is configured to engage a diskdrive carried by a disk drive transporter when a disk drive transporteris inserted in the test compartment. In certain cases, the dampenerincludes a dampening material that includes thermoplastics andrubberthermosets.

In a further aspect, a disk drive testing system includes automatedmachinery and a disk drive transporter. The disk drive transporterincludes a frame configured to receive and support a disk drive. Theautomated machinery is configured to releasably engage the frame tocontrol movement of the disk drive transporter. The disk drive testingsystem also includes a loading station for storing disk drives to betested, and a test slot configured to receive and support a disk drivetransporter carrying a disk drive. The automated machinery is operableto remove disk drives from the loading station utilizing the disk drivetransporter and insert the disk drive transporter, having a disk drivetherein, into the test slot.

Embodiments can include one or more of the following features. In someembodiments, the automated machinery includes a robot. The robot caninclude, for example, a moveable arm and a manipulator connected to themoveable arm. In some cases, the manipulator is configured to releasablyengage the frame to control movement of the disk drive transporter. Incertain cases, the robot is operable to remove disk drives from theloading station utilizing the disk drive transporter and insert the diskdrive transporter, having a disk drive therein, into the test slot.

In certain embodiments. the frame includes a face plate defining anindentation configured to be releasably engageable by the automatedmachinery.

In some embodiments, the frame includes a clamping mechanism. In somecases, the clamping mechanism includes a first engagement element and afirst actuator operable to initiate movements of the first engagementelement. In certain examples, the first actuator is operable to move thefirst engagement element into engagement with the test slot after a diskdrive being supported by the frame is arranged in a test position in thetest slot. In certain cases, the automated machinery is configured tocontrol operation of the clamping mechanism. In some cases, the frameincludes a pair of sidewalls configured to receive a disk drivetherebetween and sized to be inserted into a test slot along with a diskdrive for testing of the disk drive. In some examples, the clampingmechanism is operatively associated with at least one of the sidewalls.

In yet another aspect, a disk drive transporter, for transporting a diskdrive and for mounting a disk drive within a test slot, includes a framehaving a pair of sidewalls configured to receive a disk drivetherebetween and sized to be inserted into a test slot along with a diskdrive. The frame also includes a base plate connecting the sidewalls.The sidewalls and the base plate together define a substantiallyU-shaped opening for capturing a disk drive off of a support.

In a further aspect, a method of testing a disk drive includes actuatingautomated machinery to engage a disk drive transporter; capturing a diskdrive with the disk drive transporter; and then actuating the automatedmachinery to insert the disk drive transporter and the captured diskdrive into a test slot. Capturing the disk drive includes moving thedisk drive transporter into engagement with the disk drive using theautomated machinery.

Embodiments can include one or more of the following features. Incertain embodiments, actuating the automated machinery includesactuating a robotic arm.

In some embodiments, the disk drive transporter includes a clampingmechanism operable to clamp the disk drive transporter to the test slot,and the method includes actuating the automated machinery to operate theclamping assembly and thereby clamping the disk drive transporter to thetest slot after the disk drive transporter and the captured disk driveare inserted into the test slot.

In certain embodiments, capturing the disk drive includes actuating theautomated machinery to move the disk drive transporter into a positionunderlying the disk drive; and actuating the automated machinery toraise the disk drive transporter into a position engaging the diskdrive.

In another aspect, a method of testing a disk drive includes actuatingautomated machinery to insert a disk drive transporter carrying a diskdrive into a test slot, and actuating the automated machinery to operatea clamping mechanism and thereby clamping the disk drive transporter tothe test slot after the disk drive transporter and the captured diskdrive are inserted into the test slot.

Embodiments can include one or more of the following features. In someembodiments, actuating automated machinery includes actuating a roboticarm.

In certain embodiments, the method may include actuating the automatedmachinery to engage the clamping assembly and thereby clamping the diskdrive transporter to the captured disk drive.

In a further aspect, a test slot assembly includes a test slot and adisk drive transporter. The test slot includes a housing that defines atest compartment, and an open end, which provides access to the testcompartment. The disk drive transporter includes a frame configured toreceive and support a disk drive. The frame includes a pair of sidewallsconfigured to receive a disk drive therebetween and sized to be insertedinto the test compartment along with a disk drive. The frame alsoincludes a clamping mechanism operatively associated with at least oneof the sidewalls. The clamping mechanism includes a first engagementelement and a first actuator operable to initiate movements of the firstengagement element. The first actuator is operable to move the firstengagement element into engagement with the housing after a disk drivebeing supported by the frame is arranged in a test position in the testcompartment.

Embodiments can include one or more of the following features. In someembodiments, the first engagement element includes first and secondengagement members, and the first actuator is operable to initiatemovements of the first and second engagement members. In some examples,the first actuator is operable to move the first engagement member intoengagement with the test slot after a disk drive being supported by theframe is arranged in a test position in the test compartment, and thefirst actuator is operable to move the second engagement member intoengagement with a disk drive being supported by the frame. In somecases, the second engagement member includes a dampener. In someimplementations, the first actuator is operable to move the first andsecond engagement members in substantially opposite directions relativeto each other. In some examples, the first actuator is operable to movethe first and second engagement members substantially simultaneously.

In certain embodiments, the housing includes a pair of upstanding wallsconfigured to receive the sidewalls of the frame therebetween. In somecases, a first one of the upstanding walls includes an engagementfeature, and the first engagement element includes a protuberanceconfigured to engage the engagement feature. In some examples, the firstactuator is operable to move the protuberance into engagement with theengagement feature after the sidewalls are inserted into the testcompartment.

In still another aspect, a test slot assembly includes a disk drivetransporter and a housing. The disk drive transporter includes a frameconfigured to receive and support a disk drive. The frame includes apair of sidewalls configured to receive a disk drive therebetween. Afirst one of the sidewalls defines a pass-through aperture. The housingdefines a test compartment for receiving and supporting the disk drivetransporter, and an open end providing access to the test compartmentfor insertion and removal of the disk drive transporter. The test slotassembly also includes a first engagement element mounted to thehousing. The first engagement element is configured to extend throughthe pass-through aperture to engage a disk drive carried by the diskdrive transporter when the disk drive transporter is inserted in thetest compartment.

In a further aspect, a disk drive testing system includes automatedmachinery and

a disk drive transporter. The disk drive transporter includes a frameconfigured to receive and support a disk drive. The disk drivetransporter also includes a clamping mechanism. The clamping mechanismincludes a first engagement element, and a first actuator operable toinitiate movements of the first engagement element. The automatedmachinery is configured to control operation of the clamping mechanism.

Embodiments can include one or more of the following features. In someembodiments, the automated machinery is configured to releasably engagethe frame to control movement of the disk drive transporter

In certain embodiments, the automated machinery includes a robot. Therobot may include a moveable arm and a manipulator connected to themoveable arm. In some cases, for example, the manipulator is configuredto releasably engage the frame to control movement of the disk drivetransporter. In some examples, the manipulator is operable to controloperation of the clamping mechanism.

In some embodiments, the frame includes a face plate defining anindentation configured to be releasably engageable by the automatedmachinery.

In another aspect, a method of transporting disk drives for testingincludes actuating automated machinery and thereby moving a disk drivetransporter carrying a first disk drive between a first test slot and aloading station; and actuating the automated machinery to operate aclamping mechanism such that the disk drive transporter is clamped tothe first disk drive during movement between the first test slot and theloading station.

Embodiments can include one or more of the following features. In someembodiments. In certain embodiments, moving the disk drive transporterbetween the first test slot and the loading station includes moving thedisk drive transporter carrying the first disk drive from the loadingstation to the first test slot.

In some embodiments, moving the disk drive transporter between the firsttest slot and the loading station includes moving the disk drivetransporter carrying the first disk drive from the first test slot tothe loading station.

In certain embodiments, actuating the automated machinery to operate theclamping mechanism includes clamping the disk drive transporter to thefirst disk drive prior to moving the disk drive transporter between thefirst test slot and the loading station.

In some embodiments, actuating the automated machinery to operate theclamping mechanism includes clamping the disk drive transporter to thefirst disk drive as the disk drive transporter is being moved betweenthe first test slot and the loading station.

In certain embodiments, the method includes actuating the automatedmachinery to operate the clamping mechanism and thereby unclamping thedisk drive transporter from the first disk drive, and then actuating theautomated machinery to insert the disk drive transporter and the firstdisk drive into the first test slot. The method may also includeactuating the automated machinery to operate the clamping mechanism andthereby clamping the disk drive transporter to the first test slot afterthe disk drive transporter and the first disk drive are inserted intothe first test slot.

In some embodiments, the method includes actuating the automatedmachinery to operate the clamping mechanism and thereby unclamping thedisk drive transporter from the first test slot; and then actuating theautomated machinery to remove the disk drive transporter from the firsttest slot. In some cases, the method may also include actuating theautomated machinery to operate the clamping mechanism and therebyunclamping the disk drive transporter from the first disk drive prior toremoving the disk drive transporter from the first test slot.

In certain embodiments, the method includes actuating the automatedmachinery to operate the clamping mechanism and thereby unclamping thedisk drive transporter from a second test slot; and then actuating theautomated machinery and thereby removing the disk drive transporter fromthe second test slot. In some cases, the method also includes capturingthe first disk drive from the loading station with the disk drivetransporter after removing the disk drive transporter from the secondtest slot. Capturing the first disk drive includes moving the disk drivetransporter into engagement with the first disk drive using theautomated machinery. In some examples, the method also includesactuating the automated machinery to operate the clamping mechanism andthereby unclamping the disk drive transporter from a second disk drive.Removing the disk drive transporter from the second test slot comprisesremoving the disk drive transporter carrying the second disk drive fromthe second test slot. The method may also include actuating theautomated machinery and thereby moving the disk drive transportercarrying the second disk drive between the second test slot and theloading station, and actuating the automated machinery to operate theclamping mechanism such that the disk drive transporter is clamped tothe second disk drive during movements between the second test slot andthe loading station. In some cases, the method includes actuating theautomated machinery to insert the disk drive transporter and the seconddisk drive into a disk drive receptacle at the loading station.

In some embodiments, the method includes actuating the automatedmachinery to insert the disk drive transporter into the first test slot;and then actuating the automated machinery to operate the clampingmechanism and thereby clamping the disk drive transporter to the firsttest slot after the disk drive transporter is inserted into the firsttest slot.

In a further aspect, a method of transporting disk drives for testingincludes actuating automated machinery and thereby moving a disk drivetransporter carrying a first disk drive between a first test slot and asecond test slot; and actuating the automated machinery to operate aclamping mechanism such that the disk drive transporter is clamped tothe first disk drive during movement between the first test slot and thesecond test slot.

Embodiments can include one or more of the following features. In someembodiments. In certain embodiments, actuating the automated machineryto operate the clamping mechanism includes clamping the disk drivetransporter to the first disk drive prior to moving the disk drivetransporter between the first test slot and the second test slot.

In some embodiments, actuating the automated machinery to operate theclamping mechanism includes clamping the disk drive transporter to thefirst disk drive as the disk drive transporter is being moved betweenthe first test slot and the second test slot.

In certain embodiments, moving the disk drive transporter between thefirst test slot and the second test slot includes moving the disk drivetransporter carrying the first disk drive from the first test slottowards the second test slot. In some cases, the method also includesactuating the automated machinery to operate the clamping mechanism andthereby unclamping the disk drive transporter from the first test slot;and then actuating the automated machinery to remove the disk drivetransporter from the first test slot. The method may also includeactuating the automated machinery to operate the clamping mechanism andthereby unclamping the disk drive transporter from the first disk driveprior to removing the disk drive transporter from the first test slot.

In some embodiments, the method includes actuating the automatedmachinery to operate the clamping mechanism and thereby unclamping thedisk drive transporter from the first disk drive, and then actuating theautomated machinery to insert the disk drive transporter and the firstdisk drive into the second test slot. In some examples, the method alsoincludes actuating the automated machinery to operate the clampingmechanism and thereby clamping the disk drive transporter to the secondtest slot after the disk drive transporter and the first disk drive areinserted into the second test slot.

The details of one or more embodiments of the invention are set forth inthe accompanying drawings and the description below. Other features,objects, and advantages of the invention will be apparent from thedescription and drawings, and from the claims.

DESCRIPTION OF DRAWINGS

FIG. 1 is a perspective view of a disk drive testing system.

FIG. 2A is perspective view of a test rack.

FIG. 2B is a detailed perspective view of a slot bank from the test rackof FIG. 2A.

FIG. 3 is a perspective view of a test slot assembly.

FIGS. 4A and 4B are schematic views of self-test and functional testcircuitry.

FIG. 5 is a perspective view of a load station.

FIG. 6 is a perspective view of a tote and disk drive.

FIG. 7 is a schematic view of a disk drive testing system.

FIG. 8 is an exploded perspective view of a disk drive transporter.

FIG. 9 is a perspective view of a clamping mechanism.

FIGS. 10A and 10B are perspective views of a spring clamp.

FIG. 11 is a perspective view of an actuator.

FIGS. 12A and 12B are perspective views of a disk drive transporterframe.

FIGS. 13A-13D illustrate the assembly of a disk drive transporter.

FIG. 14 is a perspective view of a disk drive transporter.

FIG. 15A is a sectioned plan view a disk drive transporter with springclamps in an engaged position.

FIG. 15B is a detailed view of one of the spring clamps of FIG. 15A.

FIG. 16A is a sectioned plan view of a disk drive transporter withspring clamps in a disengaged position.

FIG. 16B is a detailed view of one of the spring clamps of FIG. 16A.

FIGS. 17A and 17B are perspective and plan views of a disk drivetransporter supporting a disk drive.

FIG. 18 is a plan view of a disk drive transported clamped to a diskdrive.

FIG. 19A is a perspective view of a test slot.

FIG. 19B is a perspective view of a test compartment from the test slotof FIG. 19A.

FIG. 20A is a plan view showing a disk drive transporter, supporting adisk drive, inserted in a test slot.

FIG. 20B is a detailed view of a spring clamp from FIG. 20A.

FIG. 21 is a schematic illustration of a disk drive transportercapturing a disk drive from a tote.

FIG. 22 is a perspective view of a test slot assembly.

FIG. 23A is a perspective view of a test slot.

FIG. 23B is a perspective view of a test compartment from the test slotof FIG. 23A.

FIG. 24 is a perspective view of a clamping spring.

FIGS. 25A and 25B are perspective views of a disk drive transporter.

FIG. 25C is a perspective view of the disk drive transporter of FIGS.25A and 25B supporting a disk drive.

FIG. 26A is a perspective view showing a disk drive transporter insertedin a test slot.

FIG. 26B is plan view showing a disk drive transporter, supporting adisk drive, inserted in a test slot.

FIGS. 27A and 27B are perspective views of a disk drive transporter.

FIG. 28 is a perspective view of a spring clamp.

FIG. 29 is a perspective view of a clamping assembly.

FIG. 30A illustrates the clamping assembly of FIG. 29 in an engagedposition.

FIG. 30B illustrates a clamping assembly of FIG. 29 in a disengagedposition.

FIG. 31 is a perspective view of the disk drive transporter of FIGS. 27Aand 27B supporting a disk drive.

FIG. 32 is plan view showing a disk drive transporter, supporting a diskdrive, inserted in a test slot.

FIGS. 33A and 33B are perspective views of a disk drive transporter.

FIG. 34 is a perspective view of a spring clamp.

FIG. 35 is a perspective view of a clamping assembly.

FIG. 36A is a side view of a disk drive transporter showing an actuatorin an engaged position.

FIG. 36B illustrates the clamping assembly of FIG. 35 in an engagedposition.

FIG. 37A is a side view of a disk drive transporter showing an actuatorin a disengaged position.

FIG. 37B illustrates the clamping assembly of FIG. 35 in a disengagedposition.

FIG. 38 is a perspective view of the disk drive transporter of FIGS. 33Aand 33B supporting a disk drive.

Like reference symbols in the various drawings indicate like elements.

DETAILED DESCRIPTION System Overview

As shown in FIG. 1, a disk drive testing system 10 includes a pluralityof test racks 100 (e.g., 10 test racks shown), a loading station 200,and a robot 300. As shown in FIGS. 2A and 2B, each test rack 100includes a plurality of slot banks 110, and each slot bank 110 holds aplurality of test slot assemblies 120. As shown in FIG. 3, each testslot assembly 120 includes a disk drive transporter 400 and a test slot500. The disk drive transporter 400 is used for capturing disk drives600 (FIG. 6) (e.g., from the loading station) and for transporting thedisk drive 600 to one of the test slots 500 for testing.

Referring to FIG. 4A, in some implementations, the disk drive testingsystem 10 also includes at least one computer 130 in communication withthe test slots 500. The computer 130 may be configured to provideinventory control of the disk drives 600 and/or an automation interfaceto control the disk drive testing system 10. A temperature controlsystem 140 controls the temperature of each test slot 500. Thetemperature control system 140 can include an air mover (e.g., a fan142) operable to circulate air through the test slot 500. A vibrationcontrol system 150 controls the vibration of each test slot 500. A datainterface 160 is in communication with each test slot 500. The datainterface 160 is configured to communicate with a disk dive 600 withinthe test slot 500.

As shown in FIG. 4B, a power system 170 supplies power to the disk drivetesting system 10. The power system 170 may monitor and/or regulatepower to the disk drive 600 in the test slot 500. In the exampleillustrated in FIG. 4B, each rack 100 includes at least one self-testingsystem 180 in communication with at least one test slot 500. Theself-testing system 180 includes a cluster controller 181, a connectioninterface circuit 182 in electrical communication with a disk drive 600within the test slot 500, and a block interface circuit 183 inelectrical communication with the connection interface circuit 182. Thecluster controller 181, in some examples, is configured to run one ormore testing programs with a capacity of approximately 120 self-testsand/or 60 functionality test of disk drives 600. The connectioninterface circuit 182 and the block interface circuit 183 are configuredto self-test. However, the self-testing system 180 may include aself-test circuit 184 configured to execute and control a self-testingroutine on one or more components of the disk drive testing system 10.The cluster controller 181 may communicate with the self-test circuit184 via Ethernet (e.g. Gigabit Ethernet), which may communicate with theblock interface circuit 183 and onto the connection interface circuit182 and disk drive 600 via universal asynchronous receiver/transmitter(UART) serial links. A UART is usually an individual (or part of an)integrated circuit used for serial communications over a computer orperipheral device serial port. The block interface circuit 183 isconfigured to control power and temperature of the test slot 500, andmay control up to six test slots 500 and/or disk drives 600.

Each rack 100, in some examples, includes at least one functionaltesting system 190 in communication with at least one test slot 500. Thefunctional testing system 190 includes a cluster controller 181 and atleast one functional interface circuit 191 in electrical communicationwith the cluster controller (e.g., cluster PC 181). A connectioninterface circuit 182 is in electrical communication with a disk drive600 within the test slot 500 and the functional interface circuit 182.The functional interface circuit 182 is configured to communicate afunctional test routine to the disk drive 600. The functional testingsystem 190 may include a communication switch 192 (e.g. GigabitEthernet) to provide electrical communication between the clustercontroller 181 and the one or more functional interface circuits 182.The computer 130, communication switch 192, cluster controller 181, andfunctional interface circuit 191 may communicate on an Ethernet network.However, other forms of communication may be used. The functionalinterface circuit 191 may communicate to the connection interfacecircuit 182 via Parallel AT Attachment (a hard disk interface also knownas IDE, ATA, ATAPI, UDMA and PATA), SATA, or SAS (Serial Attached SCSI).

As shown in FIG. 5, the load station 200 includes a load station body210 that defines first and second sets of tote receptacles 212 a, 212 bdisposed on opposite sides of the load station body 210. The loadstation 200 also includes a load station base 214 and a spindle 216 thatextends substantially normal to and upwardly from the load station base214. First, second, and third body portions 218 a, 218 b, 218 c arerotatably secured to the spindle 216. Each of the first, second, andthird body portions 218 a, 218 b, 218 c is independently rotatablerelative to the others.

The load station 200 also includes totes 220 configured to be removablymounted within the tote receptacles 212 a, 212 b. As shown in FIG. 6,the totes 220 include a tote body 222 which defines a plurality of diskdrive receptacles 224 (e.g., 30 shown) configured to each house a diskdrive 600. Each of the disk drive receptacles 224 includes a disk drivesupport 226 configured to support a central portion of a received diskdrive 600 to allow manipulation of the disk drive 600 along non-centralportions. Referring again to FIG. 5, the totes 200 can be loaded throughthe first tote receptacles 212 a and then rotated into alignment withthe second tote receptacles 212 b via the first, second, and third bodyportions 218 a-c for servicing by the robot 300.

As shown in FIG. 7, the robot 300 includes a robotic arm 310 and amanipulator 312 disposed at a distal end of the robotic arm 310. Therobotic arm 310 defines a first axis 314 substantially normal to a floorsurface 316 and is operable to rotate through a predetermined arc aboutand extends substantially radially from the first axis 314. The roboticarm 310 is configured to independently service each test slot 500 bytransferring disk drives 600 between the load station 200 and one of thetest racks 100. In particular, the robotic arm 310 is configured toremove a disk drive transporter 400 from one of the test slots 500 withthe manipulator 312, then pick up a disk drive 600 from one the diskdrive receptacles 224 at the load station 200 with the disk drivetransporter 400, and then return the disk drive transporter 400, with adisk drive 600 therein, to the test slot 500 for testing of the diskdrive 600. After testing, the robotic arm 310 retrieves the disk drivetransporter 400, along with the supported disk drive 600, from the testslot 500 and returns it to one of the disk drive receptacles 224 at theload station 200.

Disk Drive Transporter

As shown in FIG. 8, the disk drive transporter 400 includes a frame 410and a clamping mechanism 450. As shown in FIG. 9, the clamping mechanismincludes a pair of clamping assemblies 452 each including an actuator454 and a pair of spring clamps (i.e., proximal and distal spring clamps456 a, 456 b). As shown in FIGS. 10A and 10B, the spring clamps 456 a,456 b include a base portion 458 and first and second spring arms 460 a,460 b each having a proximal end 462 connected to the base portion 458and a displaceable distal end 464. The spring clamps 456 a, 456 b can beformed from sheet metal, e.g., stainless steel. Between their proximaland distal ends 462, 464 the spring arms 460 a, 460 b define a narrowregion 466, a broad region 468 and a pair of edges 470 therebetween. Asshown in FIG. 10A, the first spring arm 460 a includes a firstengagement member 472 having a dampener 474. The dampener 474 can beformed from, e.g., thermoplastics, thermosets, etc. As shown in FIG.10B, the second spring arm 460 b includes a second engagement member 476which defines a protuberance 478. Each of the spring clamps 456 a, 456 balso include a mounting tab 480 that extends outwardly from the baseportion 458. As discussed in greater detail below, following assembly,the spring clamps 456 a, 456 b are mounted to the frame 410 and areoperatively associated with the actuators 454 (e.g., for clamping a harddrive 600 within the frame and/or for clamping the frame within one ofthe test slots 500).

As shown in FIG. 11, each of the actuators 454 includes inner and outersurfaces 481 a, 481 b which define actuating features. The actuatingfeatures include wedges 482 and recesses 483. The actuators 454 alsodefine openings 484 which extend between the inner and outer surfaces481 a, 481 b. At their proximal ends 485, the actuators 454 includeactuator sockets 486 which are configured to be engageable with themanipulator 312 for controlling movement of the actuators 454 relativeto the frame 410.

As shown in FIGS. 12A and 12B, the frame 410 includes a face plate 412.Along a first surface 414, the face plate 412 defines an indentation416. The indentation 416 can be releaseably engaged by the manipulator312 of the robotic arm 310, which allows the robotic arm 310 to grab andmove the disk drive transporter 400. The face plate 412 also includesbeveled edges 417. When the disk drive transporter 400 is inserted intoone of the test slots 500, the beveled edges 417 of the face plate 412abut complimentary beveled edges 515 of the test slot 500 to form aseal, which, as described below, helps to inhibit the flow of air intoand out of the test slot 500.

Referring still to FIGS. 12A and 12B, the frame 410 also includes a pairof sidewalls 418, which extend outwardly from a second surface 420 ofthe face plate 412, and a base plate 422 that extends between andconnects the sidewalls 418. The sidewalls 418 and the base plate 422together define a substantially U-shaped opening, which, as described ingreater detail below, allows the disk drive transporter 400 to be usedto capture a disk drive 600 off of the disk drive supports 226 in thetotes 220. As shown in FIG. 12B, along the second surface 420, the faceplate 412 defines projections 423, which can aid in applying force tothe disk drive 600 to help ensure a mating connection between the diskdrive connector 610 (FIG. 17A) and the test slot connector 524 (FIGS.19A & 19B).

The sidewalls 418 are spaced to receive a disk drive 600 (shown inhidden lines) therebetween, and define surfaces 424 for supporting adisk drive 600. The sidewalls 418 also define back hooks 426, which canbe useful for extracting the disk drive 600 from a test slot 500 (e.g.,for separating a connector on the disk drive from a mating connector inthe test slot 500). The sidewalls 418 also define lead-ins 428 (e.g.,chamfered edges), which can aid in centering a disk drive 600 in theframe 410.

The sidewalls 418 each define a pair of pass-through apertures 430,which extend between inner and outer surfaces 432 a, 432 b of thesidewalls 418. Following assembly, a corresponding one of the springclamps 456 a, 456 b is associated with each of the pass-throughapertures 430. The sidewalls 418 also define actuator slots 434 whichextend from a proximal end 435 to a distal end 436 of each sidewall 418.The face plate 412 defines a pair of apertures 437 which extend betweenthe first and second surfaces 414, 420 thereof, and which allow accessto the actuator slots 434. The sidewalls 418 also define partialthrough-holes 438 which provide access to the actuator slots 434 fromthe outer surfaces 432 b of the sidewalls 418.

FIGS. 13A-D, illustrate the assembly of the clamping mechanism 450 withthe frame 410. As shown in FIG. 13 a, the distal spring clamps 456 b areinserted into the actuator slots 434 through openings 439 in the distalends 436 of the sidewalls 418. During insertion, the displaceable distalends 464 of the distal spring clamps 456 b are compressed by the innersurfaces of the actuator slot 434 such that the broad regions 468 of thedistal spring clamps 456 b fit within the corresponding actuator slots434. The distal spring clamps 456 b are then advanced into the actuatorslot 434 until the edges 470 reach the distal pass-through apertures430, at which point the distal ends 464 of the distal spring clamps 456b extend outwardly toward their rest position with the edges 470abutting surfaces of the pass-though apertures 430. In this position,the edges 470 inhibit reward movement (indicated by arrow 50) of thedistal spring clamps 456 b and the tabs 480 abut the distal ends 436 ofthe sidewalls 418 to inhibit forward movement (indicated by arrow 52) ofthe distal spring clamps 456 b. In this manner, the distal spring clamps456 b are substantially fixed against further linear movement within theactuator slots 434.

Next, as shown in FIG. 13B, a first one of the actuators 454 is insertedinto a first one of the actuator slots 434 through the face plate 412and is advanced into the slot 434 until the opening 484 in the actuator454 is aligned with the partial through-hole 438 in the associatedsidewall 418. With the actuator 454 in this position, a first one of theproximal spring clamps 456 a can be aligned in the opening 484 throughthe partial through-hole 438, as shown in FIG. 13C. Referring to FIG.13D, with the proximal spring clamp 456 a so aligned, the actuator 454can be retracted (as indicated by arrow 54) to push the proximal springclamp 456 a forward. During forward movement, the displaceable distalends 464 of the proximal spring clamp 456 a are compressed by the innersurfaces of the actuator slot 434 such that the broad regions 468 of thespring clamp 456 a fit within the corresponding actuator slot 434. Theproximal spring clamp 456 a is advanced, via movement of the actuator454, into the actuator slot 434 until the edges 470 reach the proximalpass-through apertures 430, at which point the distal ends 464 of theproximal spring clamp 456 a extend outwardly toward their rest positionwith the edges 470 abutting surfaces of the pass-though aperture 430. Inthis position, the edges 470 inhibit reward movement (indicated by arrow56) of the proximal spring clamps 456 a and the tabs 480 abut thesurface forming the partial through-hole 438 to inhibit forward movement(indicated by arrow 58) of the proximal spring clamp 456 a. In thismanner, the proximal spring clamp 456 a is substantially fixed againstfurther linear movement within the actuator slots 434. Assembly of theother proximal spring clamp 456 a in on the other sidewall 418 isperformed in the same manner.

Referring to FIG. 14, following assembly, the actuators 454 are eachindependently slidable within the corresponding actuator slot 434 andare moveable relative to the sidewalls 418 between an engaged and arelease position. As shown in FIGS. 15A and 15B, in the engagedposition, the wedges 482 of the actuators 454 engage the spring clamps456 a, 456 b to cause the first and second engagement members 472, 476of the spring arms 460 a, 460 b to extend outwardly from the inner andouter surfaces 432 a, 432 b of the sidewalls 418. The first and secondengagement members 472, 476 of the spring clamps 456 a, 456 b can alsobe retracted by pulling the actuators 454 outwardly from the firstsurface 414 of the face plate 414 (as indicated by arrow 60). As shownin FIGS. 16A and 16B, when the actuators 454 have been retracted to therelease position, the engagement members 472, 476 are allowed to retractto a rest position within the recesses 483 of the actuators 454.

As shown in FIGS. 17A and 17B, when the actuators 454 are in the releaseposition, with the spring clamps 456 a, 456 b retracted, a disk drive600 (shown hidden in FIG. 17B) can be inserted into the frame 410between the sidewalls 418. With a disk drive 600 inserted in the frame410, the actuators 454 can be moved towards the engaged position todisplace the first engagement members 472 into contact with the diskdrive 600 to clamp the disk drive 600 against movement relative to theframe 410, as shown in FIG. 18. When engaged with the disk drive 600,the dampeners 474 can help to inhibit the transfer of vibrations betweendisk drive transporter 400 and the disk drive 600. The dampeners 474 canalso help to limit metal to metal contact between the spring clamps 456a, 456 b and the disk drive 600.

Test Slot

As shown in FIG. 19A, the test slot 500 includes a base 510, upstandingwalls 512 a, 512 b and first and second covers 514 a, 514 b. The testslot 500 includes a rear portion 518 and a front portion 519. The rearportion 518 houses a connection interface board 520, which carries theconnection interface circuit 182 (FIGS. 4A and 4B). The connectioninterface board 520 includes a ribbon cable 522, which provides forelectrical communication between the connection interface circuit 182(FIGS. 4A and 4B) and the test circuitry (e.g., self test system 180and/or functional test system 190) in the associated test rack 100. Theconnection interface board 520 also includes a test slot connector 524,which provides for electrical communication between the connectioninterface circuit 182 and a disk drive in the test slot 500. The frontportion 519 of the test slot 500 defines a test compartment 526 forreceiving and supporting one of the disk drive transporters 400. Thebase 510, upstanding walls 512 a, 512 b, and the first cover 514 atogether define a first open end 525, which provides access to the testcompartment 526 (e.g., for inserting and removing the disk drivetransporter 400), and the beveled edges 515, which abut the face plate412 of a disk drive transporter 400 inserted in the test slot 500 toprovide a seal that inhibits the flow of air into and out of the testslot 500 via the first open end 525.

As shown in FIG. 19B, in the region of the test compartment 526, theupstanding walls 512 a, 512 b define engagement features 527, whichprovide mating surfaces for the spring clamps 456 a, 456 b of the diskdrive transporter 400 allowing the disk drive transporter 400 to beclamped within the test slot 500. For example, with a disk drive 600 inthe disk drive transporter 400 and with the actuators 454 in the releaseposition, the disk drive transporter 400 can be inserted into a testslot 500 until a connector 610 on the disk drive 600 mates with the testslot connector 524, as shown in FIG. 20A. With the disk drivetransporter 400 in a fully inserted position within the test slot 500(i.e., with the disk drive connector 610 mated with the test slotconnector 524), the actuators 454 can be moved towards the engagedposition to displace the first and second engagement members 472, 476 ofthe spring clamps 456 a, 456 b to extend outwardly from the inner andouter surfaces 432 a, 432 b of the sidewalls 418. As shown in hiddenlines in FIG. 20B, in the engaged position, the second engagementmembers 476 extend outwardly from the outer surfaces 432 b of sidewalls418 and engage the engagement features 527 in the test slot 500 to clampthe disk drive transporter 400 against movement relative to the testslot 500. At the same time, the first engagement members 472 extendoutwardly from the inner surfaces 432 a of the sidewalls 418 and engagethe disk drive 600 to clamp the disk drive 600 against movement relativeto the disk drive transporter 400. The disk drives 600 can be sensitiveto vibrations. Fitting multiple disk drives 600 in a single test rack100 and running the disk drives 600 (e.g., during testing), as well asthe insertion and removal of disk drives 600 from the various test slots500 in the test rack 100 can be sources of undesirable vibration. Insome cases, for example, one of the disk drives 600 may be operatingunder test within one of the test slots 500, while others are beingremoved and inserted into adjacent test slots 500 in the same test rack100. Retracting the engagement element 476 during insertion and removal,and clamping the disk drive transporter 400 to the test slot 500 afterthe disk drive transporter 400 is fully inserted into the test slot 500,as described above, can help to reduce or limit vibrations by limitingthe contact and scraping between the disk drive transporters 400 and thetest slots 500 during insertion and removal of the disk drivetransporters 400. Additionally, the ability to retract the engagementelement 476 can also help to reduce particle generation that mayotherwise result from scraping between the disk drive transporters 400and the test slots 500 during insertion and removal of the disk drivetransporters 400, which may be beneficial since particulate matter canbe deleterious to the disk drives 600.

Methods of Operation

In use, one of the disk drive transporters 400 is removed from one ofthe test slots 500 with the robot 300 (e.g., by grabbing the indentation416 of the disk drive transporter 400 with the manipulator 312 of therobot 300). As illustrated in FIG. 21, the U-shaped opening formed bythe sidewalls 418 and base plate 422 allows the frame 410 to fit aroundthe disk drive support 226 in the tote 220 so that the disk drivetransporter 400 can be moved (e.g., via the robotic arm 310) into aposition beneath one of the disk drives 600 in the tote 220. The diskdrive transporter 400 can then be raised (e.g., by the robotic arm 310)into a position engaging the disk drive 600. As the disk drivetransporter 400 is raised, the lead-ins 428 on the sidewalls 418 aid incentering a disk drive 600 in the frame 410.

With the disk drive 600 in place within the disk drive transporter 400,the disk drive transporter 400 can be moved by the robotic arm 310 toposition the frame 410 and the disk drive 600 within one of the testslots 500. The manipulator 312 is operable to control actuation of theclamping mechanism 450 (e.g., by controlling movements of the actuators454). This allows the clamping mechanism 450 to be actuated before thedisk drive transporter 400 is moved from the tote 220 to the test slot500 to inhibit movement of the disk drive 600 relative to the disk drivetransporter 400 during the move. Prior to insertion, the manipulator 312can again move the actuators 454 to the release position to allow forinsertion of the disk drive transporter 400 into one of the test slots500. Moving the actuators 454 to the release position prior to insertionalso allows the disk drive 600 to move relative to the disk drivetransporter 400 during insertion, which can aid in aligning the diskdrive connector 610 with the test slot connector 524. The disk drivetransporter 400 and disk drive 600 are advanced into the test slot 500,via movement of the robotic arm 310, until the disk drive 600 is in atest position with the disk drive connector 610 engaged with the testslot connector 524. Once the disk drive 600 is in the test position, theactuators 454 are moved to the engaged position (e.g., by themanipulator 312) such that the first engagement members 472 engage thedisk drive 600 to clamp the disk drive 600 against movement relative tothe disk drive transporter 400 and such that the second engagementmembers 476 engage the engagement features 527 in the test slot 500 toinhibit movement of the disk drive transporter 400 relative to the testslot 500. The clamping of the disk drive transporter 400 in this mannercan help to reduce vibrations during testing.

Following testing, the clamping mechanism can be disengaged by movingthe actuators 454 (e.g., with the manipulator 312) to the releaseposition to disengage the engagement members 472, 476 from the diskdrive 600 and the test slot 500. Once the clamping mechanism 450 isdisengaged the disk drive transporter 400 and disk drive 600 can bewithdrawn from the test slot 500, e.g., by engaging the indentation 416in the face plate 412 with the manipulator 312 and pulling the diskdrive transporter 400 out of the test slot 500 with the robotic arm 310.During withdrawal, the back hooks 426 of the sidewalls 418 can help indisengaging the disk drive connector 610 from the test slot connector524.

The disk drive transporter 400 and the tested disk drive 600 can then bereturned to the loading station 200 with the robotic arm 310. In somecases, for example, once the disk drive transporter 400 is sufficientlywithdrawn from the test slot 500, the clamping mechanism 450 can againbe actuated (e.g., with the manipulator 312) before the disk drivetransporter 400 is moved from the test slot 500 to the loading station200 to inhibit movement of the disk drive 600 relative to the disk drivetransporter 400 during the move. The process can be repeated for each ofthe disk drives in the loading station 200.

Other Embodiments

Other embodiments are within the scope of the following claims.

For example, while the test slot assemblies described above includesparticular mechanisms for clamping with the disk drive transporter, thetest slot assemblies can also include other mechanisms for clamping. Forexample, FIG. 22 illustrates another embodiment of a test slot assembly120 a including a disk drive transporter 400 a and a test slot 500 a inwhich the test slot 500 a performs a clamping function. As shown in FIG.23A, the test slot 500 a includes a base 510 a, upstanding walls 513 a,513 b and first and second covers 517 a, 517 b. The test slot 500 aincludes a rear portion 518 a and a front portion 519 a. The frontportion 519 a of the test slot 500 a defines a test compartment 526 afor receiving and supporting one of the disk drive transporters 400. Thebase 510 a, upstanding walls 513 a, 513 b, and the first cover 517 atogether define a first open end 525 a, which provides access to thetest compartment 526 a (e.g., for inserting and removing the disk drivetransporter 400 a).

As shown in FIG. 23B, in the region of the test compartment 526 a, thetest slot 500 a also includes clamping springs 530. As shown in FIG. 24,the clamping springs 530 include retaining tabs 532, ramp surfaces 533,and an engagement member 534 including a dampener 535. Referring againto FIG. 23B, the upstanding walls 513 a, 513 b include mounting holes536. The retaining tabs 532 of the clamping springs 530 sit within themounting holes 536 and retain the clamping springs 530 in place on innersurfaces 537 of the upstanding walls 513 a, 513 b.

As shown in FIGS. 25A and 25B, the disk drive transporter 400 agenerally includes a frame 410 a. The frame 410 a includes a face plate412 a. Along a first surface 414 a, the face plate 412 a defines anindentation 416 a. The indentation 416 a is releasably engageable by amating protrusion on the manipulator 312 of the robotic arm 310, whichallows the robotic arm 310 to grab and move the disk drive transporter400 a. The face plate 412 a also includes beveled edges 417 a. When thedisk drive transporter 400 a is inserted into one of the test slots 500a, the beveled edges 417 a of the face plate 412 a abut complimentarybeveled edges 515 a of the test slot 500 a to form a seal, which helpsto inhibit the flow of air into and out of the test slot 500 a.

Referring still to FIGS. 25A and 25B, the frame 410 a also includes apair of sidewalls 418 a, which extend outwardly from a second surface420 a of the face plate 412 a, and a base plate 422 a that extendsbetween and connects the sidewalls 418 a. As shown in FIG. 25B, alongthe second surface 420 a, the face plate 412 a defines projections 423a, which can aid in applying force to the disk drive 600 a as the diskdrive transporter 400 a is inserted into the test slot 500 a.

As shown in FIG. 25C, the sidewalls 418 a are spaced to receive a diskdrive 600 therebetween, and define surfaces 424 a for supporting a diskdrive 600. The sidewalls 418 a also define back hooks 426 a, which canbe useful for extracting the disk drive 600 from the test slot 500 a.The sidewalls 418 a also define lead-ins 428 a, which can aid incentering a disk drive 600 in the frame 410 a.

Referring again to FIGS. 25A and 25B, the sidewalls 418 a define slots419 which extend from distal ends 436 a of the side walls 418 a andterminate in pass-through apertures 421. The pass through apertures 421are sized to allow the engagement members 534 to pass therethrough.During insertion of the disk drive transporter 400 a into the test slot500 a outer surfaces 433 of the side walls 418 a engage the rampsurfaces 533 of the clamping springs 530 causing the clamping springs530 to be compressed and the engagement members 534 to be displacedtowards the inner surfaces 537 of the upstanding walls 513 a, 513 b. Asthe disk drive transporter 400 a is advanced into the test slot 500 athe dampeners 535 slide within the slots 419 in the side walls 418 a. Asshown in FIGS. 26A and 26B, when the disk drive transporter 400 areaches the fully inserted position, the engagement members 534 extendthrough the pass through apertures 421 in the side walls 418 a such thatthe dampeners 535 can engage a disk drive 600 (FIG. 26B) carried by thedisk drive transporter 400 a.

FIGS. 27A and 27B, illustrate another embodiment of a disk drivetransporter 400 b having a clamping mechanism. The disk drivetransporter 400 b includes a frame 410 b having a face plate 412 b and apair of sidewalls 425 a, 425 b. A first one of the sidewalls 425 adefines a pass-through aperture 427 which extends between inner andouter surfaces 431 a, 431 b of the first sidewall 425 a. An engagementelement (e.g., spring clamp 700) is disposed within the pass-throughaperture 427.

As shown in FIG. 28, the spring clamp 700 includes a base portion 716and first and second spring arms 718 a, 718 b each having a proximal end719 connected to the base portion 716 and a displaceable distal end 720.The first spring arm 718 a includes a first engagement member 721 ahaving a first dampener 722 a, and the second spring arm 718 b includesa second engagement member 721 b having a second dampener 722 b. Anactuator 710 is operatively associated with the spring clamp 700. Theactuator 710 passes through the face plate 412 b and into an actuatorslot 712 in the first sidewall 425 a. As shown in FIG. 29, the actuator710 has an elongate body 711 extending from a proximal end 713 to adistal end 715 along a first axis 717. Along its length the actuator 710has a cross-section that includes a broad dimension D1 and a narrowdimension D2.

The actuator 710 is rotatable, about the first axis 717, within theactuator slot 712 between an engaged and a release position to initiatemovements of the spring clamp 700. As shown in FIG. 30A, in the engagedposition, cam surfaces 714 of the actuator 710 engage the spring clamp700 to cause the displaceable distal ends of the spring arms 720 toextend outwardly from the inner and outer surfaces 431 a, 431 b of thefirst sidewall 425 a (shown hidden). The displaceable distal ends 720 ofthe spring arms 720 can also be retracted by rotating the actuator 710to the release position, as shown in FIG. 30B. When the actuator 710 hasbeen rotated to the release position, the displaceable distal ends ofthe spring arms 720 are allowed to retract.

When the actuator 710 is in the release position, with the spring clamp700 retracted, a disk drive 600 can be inserted into the frame 410 bbetween the sidewalls 425 a, 425 b, as shown in FIG. 31. Once a diskdrive 600 is inserted in the frame 410 b, the actuator 710 can berotated towards the engaged position to displace the first engagementmember into contact with the disk drive 600 to clamp the disk drive 600against movement relative to the frame 410 b. In a similar manner, thedisk drive transporter 400 b can also be clamped within a test slot. Forexample, with a disk drive 600 in the frame 410 b and with the actuator710 in the release position, the disk drive transporter 400 b can beinserted into a test slot 500 b, as shown in FIG. 32 (test slot shownwith covers removed for clarity). With the disk drive transporter 400 bin a fully inserted position within the test slot 500 b (i.e., with thedisk drive connector mated with the test slot connector) the actuator710 can be rotated towards the engaged position to displace the firstand second engagement members 721 a, 721 b to extend outwardly from theinner and outer surfaces of the first sidewall 425 a. In this position,the second engagement member 721 b of the spring clamp 700 extendsoutwardly from the outer surface 431 b of first sidewall 425 a andengages a wall 723 of the test slot 500 b, thereby clamping the diskdrive transporter 400 b against movement relative to the test slot 500b. At the same time, the first engagement member 721 a of the springclamp 700 extends outwardly from the inner surface 431 a of the firstsidewall 425 a and engages the disk drive 600 to clamp the disk drive600 against movement relative to the disk drive transporter 400 b.

FIGS. 33A and 33B illustrate yet another embodiment of a disk drivetransporter 400 c having a clamping mechanism (e.g. for clamping a diskdrive within the disk drive transporter and/or for clamping the diskdrive transporter within a test slot). As shown in FIGS. 33A and 33B,the disk drive transporter 400 c includes a frame 410 c having a faceplate 412 c and a pair of sidewalls 429 a, 429 b. A first one of thesidewalls 429 a defines a pass-through aperture 440 which extendsbetween inner and outer surfaces 441 a, 441 b of the first sidewall 429a. An engagement element (e.g., spring clamp 750) is disposed within thepass-through aperture 427.

As shown in FIG. 34, the spring clamp 750 includes a base portion 752and first and second spring arms 753 a, 753 b each having a proximal end754 connected to the base portion 752 and a displaceable distal end 755.The first spring arm 753 a includes a first engagement member 756 ahaving a first dampener 758 a, and the second spring arm 753 b includesa second engagement member 756 b having a second dampener 758 b.

An actuator 760 is operatively associated with the spring clamp 750. Theactuator 760 passes through the face plate 412 c and into an actuatorslot 762 in the first sidewall 429 a. As shown in FIG. 35, along itslength the actuator 760 has a cross-section that defines a wedge 764.

The actuator 760 is pivotable within the actuator slot 762 between anengaged position and a release position. As illustrated by FIGS. 36A and36B, in the engaged position, the wedge 764 of the actuator 760 engagesthe spring clamp 750 to cause the distal ends 755 of the spring arms 753a, 753 b to extend outwardly from the inner and outer surfaces 441 a,441 b of the first sidewall 429 a. Thus, the spring clamp 750 can beactuated by pushing and/or pulling a proximal end of the actuator 765upwards (arrow 62) to force a distal end of the actuator 760 towards thespring clamp 750.

The distal ends 755 of the spring arms 753 a, 753 b can also beretracted by pivoting the actuator 760 to the release position, as shownin FIGS. 37A and 37B. When the actuator 760 has been rotated to therelease position, the distal ends 755 are allowed to retract.

When the actuator 760 is in the release position, with the spring clamp760 retracted, a disk drive 600 can be inserted into the frame 410 cbetween the sidewalls 429 a, 429 b, as shown in FIG. 38. Once a diskdrive 600 is inserted in the frame 410 c, the actuator 760 can be movedtowards the engaged position to displace the first engagement member 756a into contact with the disk drive 600 to clamp the disk drive 600against movement relative to the frame 410 c. In a similar manner, thedisk drive transporter 400 c can also be clamped within a test slot. Forexample, with a disk drive 600 in the frame 410 c and with the actuator760 in the release position, the disk drive transporter 400 c can beinserted into a test slot. With the disk drive transporter 400 c in afully inserted position within the test slot, the actuator 760 can bepivoted towards the engaged position to displace the distal ends 755 ofthe spring arms 753 a, 753 b to extend outwardly from the inner andouter surfaces 441 a, 441 b of the first sidewall 429 a. In thisposition, the second engagement member 756 b of the spring clamp 750extends outwardly from the outer surface 441 b of first sidewall 429 aand engages the test slot, thereby clamping the disk drive transporter400 c against movement relative to the test slot. At the same time, thefirst engagement member 756 a of the spring clamp 750 extends outwardlyfrom the inner surface 441 a of the first sidewall 429 a and engages thedisk drive 600 to clamp the disk drive 600 against movement relative tothe disk drive transporter 400 c.

Elements of different embodiments may be combined to form combinationsnot specifically described herein. Other details and features combinablewith those described herein may be found in the following U.S. patentapplications entitled “DISK DRIVE TESTING”, inventors: Edward Garcia etal., and having assigned Ser. No. 11/958,788, filed Dec. 18, 2007; and“DISK DRIVE TESTING”, inventors: Edward Garcia et al., and havingassigned Ser. No. 11/958,817, filed Dec. 18, 2007, the entire contentsof the aforementioned applications are hereby incorporated by reference.

The claims are not limited to the embodiments described herein.

What is claimed is:
 1. A disk drive transporter for mounting a diskdrive within a test slot, the disk drive transporter comprising: a frameconfigured to receive and support the disk drive, the frame comprisingsidewalls configured to receive a disk drive therebetween and sized tobe inserted into the test slot along with the disk drive; and a clampingmechanism operatively associated with at least one of the sidewalls andcomprising: a first engagement element; and a first actuator operable toinitiate movements of the first engagement element, wherein the firstactuator is operable to move the first engagement element into clampingengagement with the test slot and the disk drive after the disk drivebeing supported by the frame has been substantially fully inserted intothe test slot, thereby inhibiting independent movement between the diskdrive, the disk drive transporter and the test slot during testing; andwherein the first actuator is operable to move the first engagementelement out of clamping engagement with the test slot and the disk drivethereby allowing independent movement between the disk drive and thedisk drive transporter.
 2. The disk drive transporter of claim 1,wherein the first actuator is operable to move the first engagementelement into contact with a disk drive being supported by the frame. 3.The disk drive transporter of claim 1, wherein the first engagementelement comprises first and second engagement members, and wherein thefirst actuator is operable to initiate movements of the first and secondengagement members.
 4. The disk drive transporter of claim 3, whereinthe first actuator is operable to move the first engagement member intocontact with the test slot after a disk drive being supported by theframe has been substantially fully inserted into test slot, and whereinthe first actuator is operable to move the second engagement member intocontact with a disk drive being supported by the frame.
 5. The diskdrive transporter of claim 3, wherein the first actuator is operable tomove the first and second engagement members substantiallysimultaneously.
 6. The disk drive transporter of claim 1, wherein theclamping mechanism further comprises a second engagement element, andwherein the first actuator is operable to initiate movements of thesecond engagement element.
 7. The disk drive transporter of claim 6,wherein the first actuator is operable to move the second engagementelement into contact with the test slot after a disk drive beingsupported by the frame has been substantially fully inserted into thetest slot.
 8. The disk drive transporter of claim 6, wherein the firstactuator is operable to move the second engagement element into contactwith a disk drive being supported by the frame.
 9. The disk drivetransporter of claim 1, wherein the clamping mechanism furthercomprises: a second engagement element; and a second actuator operableto initiate movements of the second engagement element.
 10. The diskdrive transporter of claim 9, wherein the second actuator is operableindependently of the first actuator to initiate movements of the secondengagement element.
 11. The disk drive transporter of claim 9, whereinthe second actuator is operable to move the second engagement elementinto contact with the test slot after a disk drive being supported bythe frame has been substantially fully inserted into the test slot. 12.The disk drive transporter of claim 9, wherein the second actuator isoperable to move the second engagement element into contact with a diskdrive being supported by the frame.
 13. A test slot assembly comprising:a test slot comprising: a housing defining: a test compartment, and anopen end providing access to the test compartment; and a disk drivetransporter comprising; a frame configured to receive and support a diskdrive, the frame comprising: sidewalls configured to receive a diskdrive therebetween and sized to be inserted into the test compartmentalong with a disk drive; and a clamping mechanism operatively associatedwith at least one of the sidewalls and comprising: a first engagementelement; and a first actuator operable to initiate movements of thefirst engagement element, wherein the first actuator is operable to movethe first engagement element into clamping engagement with the housingand the disk drive after the disk drive being supported by the frame hasbeen substantially fully inserted into the test compartment, therebyinhibiting independent movement between the disk drive, the disk drivetransporter and the test slot during testing; and wherein the firstactuator is operable to move the first engagement element out ofclamping engagement with the housing and the disk drive, therebyallowing independent movement between the disk drive and the disk drivetransporter.
 14. The test slot assembly of claim 13, wherein the firstengagement element comprises first and second engagement members, andwherein the first actuator is operable to initiate movements of thefirst and second engagement members.
 15. The test slot assembly of claim14, wherein the first actuator is operable to move the first and secondengagement members substantially simultaneously.
 16. The disk drivetransporter of claim 13, wherein the clamping mechanism furthercomprises: a second engagement element; and a second actuator operableto initiate movements of the second engagement element.
 17. The testslot assembly of claim 13, wherein the housing comprises upstandingwalls configured to receive the sidewalls of the frame therebetween,wherein a first one of the upstanding walls comprises an engagementfeature, and wherein the first engagement element comprises aprotuberance configured to engage the engagement feature.
 18. A diskdrive testing system comprising: automated machinery; and a disk drivetransporter comprising: a frame configured to receive and support a diskdrive, the frame comprising sidewalls configured to receive a disk drivetherebetween and sized to be inserted into a test slot along with a diskdrive; and a clamping mechanism operatively associated with at least oneof the sidewalls and comprising: a first engagement element, and a firstactuator operable to: initiate movement of the first engagement elementinto clamping engagement with the test slot after the disk drive beingsupported by the frame has been substantially fully inserted into thetest slot thereby inhibiting independent movement between the diskdrive, the disk drive transporter and the test slot during testing, andinitiate movement the first engagement element out of clampingengagement with the test slot thereby allowing independent movementbetween the disk drive and the disk drive transporter, wherein theautomated machinery is configured to control operation of the clampingmechanism.
 19. The disk drive testing system of claim 18, wherein theautomated machinery is configured to releasably engage the frame tocontrol movement of the disk drive transporter.
 20. The disk drivetesting system of claim 18, wherein the automated machinery comprises arobot comprising a moveable arm and a manipulator connected to themoveable arm, and wherein the manipulator is configured to releasablyengage the frame to control movement of the disk drive transporter,wherein the manipulator is operable to control operation of the clampingmechanism.